1.Radon-222 has a half-life of 3.8 days. If one starts with 0.064 kg0.064\,\text{kg}0.064kg of radon-222, the quantity of radon-222 left after 19 days will bea.0.002 kg0.002\,\text{kg}0.002kgb.0.062 kg0.062\,\text{kg}0.062kgc.0.032 kg0.032\,\text{kg}0.032kgd.0.024 kg0.024\,\text{kg}0.024kgLogin to continueOnly logged in users canattempt or see the solution.
